Decent Espresso is a company based in Hong Kong, San Francisco and Seattle. They build espresso machines that are controlled from a touch-screen tablet. Users have control over temperature and pressure. Data are recorded along with parameters such as flow rate, ambient humidity, and the actual temperature in the grouphead (using a thermo probe). So custom results can be replicated.

The tablet software is developed with Tcl/Tk and AndroWish with Bluetooth (See here [1]). There was an Offering TCL Jobs about this topics in October 2016.

To see the user interface, watch this YouTube video [2]

For technical details about Decent Espresso products see their Google+ page [3]

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